Where have the days of used stuff being reasonable gone. 2500 for two diffs is crazy. 2000 is crazy if you ask me. THey cost around 800 or so, so 1500 would be a good starting point I think. They are simple to install unless youre doing gears at the same time. I bought my ARBs used, set up in the thirds, with all stainless steel lines, switches, wire loom, compressor and all, for 750 shipped. Now they are 10 spline but for another 500 bucks they could be 24 spline. Im thinking that is not an every day deal, but 2500 is nuts. Good luck. Gordo